ping pong (threads) c

pthreads.c

#include <stdio.h>
#include <pthread.h>



void *ping_task(char *arg)
{ 
  printf("ping %s", arg);
  usleep(1);
  return (NULL);
}

void *pong_task(char *arg)
{ 
  usleep(1);
  printf("pong %s", arg);
  return (NULL);
}

int main() {
  pthread_t	ping;
  pthread_t	pong;
  int		result;
  
  result = pthread_create(&ping, NULL, ping_task, NULL);
  if ( result != 0 ){
  	fprintf(stderr, "For some reason I couldn't create a thread! (errno = %d)\n", result);
    exit(0);
  }
  
  result = pthread_create(&pong, NULL, pong_task, NULL);
  if ( result != 0 ){
  	fprintf(stderr, "For some reason I couldn't create a thread! (errno = %d)\n", result);
    exit(0);
  }
  
  pthread_join( pong, NULL ); 
  pthread_join( ping, NULL );

  return 0;
}